#include<stdio.h>

typedef unsigned char *byte_pointer;

int show_bytes(byte_pointer start, size_t len)
{
	size_t i;
	for(i=0;i<len;i++)
		printf("%.2x",start[i]);
	printf("\n");
	return start[0];
}
int show_int(int x) {
	int i;
	i=show_bytes((byte_pointer)&x,sizeof(int));
	return i;
}
void show_float(float x) {
     show_bytes((byte_pointer)&x,sizeof(float));
}
void show_pointer(void *x) {
     show_bytes((byte_pointer)&x,sizeof(void *));
}
void test_show_bytes(int val){
	int ival = val;
	float fval = (float) ival;
	int *pval = &ival;
	show_int(ival);
	show_float(fval);
	show_pointer(pval);
}
int main(){
	void *x;int i;
	i=show_int(63);
	show_float(9.0);
	show_pointer(x);	
	test_show_bytes(64);
	if(i==0x80)
	printf("学号20155234的笔记本电脑是小端\n");
	else
	printf("学号20155234的笔记本电脑是大端\n");
}

